Smoke-consumer



(No Model.) 3 Sheets-Sheet 1.

J. SARGENT.

SMOKE CONSUMER.

No. 481,719. Patented Aug. 30, 1892.

QNXUNLW (No Model.) 3 Sheets-Sheet 2. J. SARGENT.

SMOKE CONSUMER.

No, 481,719. Patented Aug. 30, 1892.

Zflm and,

(No Model.) 3 SheetsSheet 3.

J. SARGENT.

SMOKE CONSUMER.

No. 481,719. Patented. Aug. 30, 1892.

f y' K NITED STATES ATENT OFFICE.

JAMES SARGENT, OF ROCHESTER, NEWV YORK.

SMOKE-CONSUMER.

SPECIFICATION forming part of Letters Patent No. 481,719, dated August 30, 1892.

Application filed March 5, 1892- Serial No. 423,877. (No model.)

To all whom it may concern:

Be it known that I, JAMES SARGENT, of Rochester, in the county of Monroe and State of New York, have invented acertain new and useful Improvement in Smoke-Consumers; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the drawings accompanying this specification.

My improvement relates to that class of furnaces in which when the doors are opened to apply fresh fuel a jet of steam is turned on over the fire and air is admitted over the fire to produce combustion of the smoke and soot that otherwise would be carried up the chimney and be deposited in dense volumes outside. Such devices are already known, operated in various ways; and my invention embodies a time-movement combined with the mechanism, the whole arranged and operating as hereinafter more fully set forth.

In the drawings, Figure 1 is a perspective View of parts of a furnace and boiler, showing my improvement attached. Fig. 2 is an enlarged front elevation, partially in section, of the time movement, the compensating pulleys, the pivoted dog, and other connecting parts of my mechanism. Fig. 3 is a face view, partially in section, of the two compensating pulleys, showing the position of the devices at the moment of commencing to open the furnace-door. Fig. 4 is a plan view of said two compensating pulleys with the parts in the same position as shown in Fig. 2. Fig. 5 is an enlarged vertical section of the steamchamber by which the steam is discharged into the furnace; also, connecting parts of the same. Fig. 6 is a cross-section in line as :1; of Fig. 5 and a plan view of the two wheels by which motion isimparted to the valve inside the steam-chamber. Fig. 7 is a face view of the damper inside the passage through the bridge-wall in the ash-pit. Fig. 8 is a front elevation of the furnace, showing a modification.

A indicates the furnace front, provided with the ordinary doors B B, opening into the fire-chamber, and other doors openinginto the ash-pit. My improvement is connected with the doors B B, and is as follows:

C is a steam-pipe leading from the boiler to a small steam-chamber D, and E E are two smaller branch steam-pipes leading from the chamber D through the furnace-front and.

opening into the fire-chamber. Then the door B is opened, the steam is automatically turned on through the branch pipes E E and injected over the fire, as will be presently described.

F, Fig. 2, is a time-movement of any suitable kind provided with a winding-drum a and an escapement b. A cord 0, having a weight (1 attached, winds on one part of this drum, and another cord f, connected with the pulleys hereinafter described, winds on another part of the drum.

G and H are two pulleys turningindependently on the same stud g. The cord f is attached to and winds up with the turning of the outer pulley H. Another cord or chain It is attached to and winds up with the turning of the second pulley G. The opposite end of cord his attached to a wheel '1; on a valve-stem 70, Fig. 5, which extends up into the steam-chamber D.

On the upper end of the valve-stem is a disk valve is, and beneath this a fixed diaphragm Z of the chamber. The valve and diaphragm are both provided with steam-openings m m, which when the furnace-door B is opened coincide and turn the steam into the branch pipes E E; but when the door is closed are nearly shut off, allowing only a little of the steam to escape into the fire.

The door B is provided with a spindle 'n, which turns with it, and on the upper end of this spindle is fixed a wheel 0, similar to the wheel 1' on the valve-stem. The wheel 0 has a pin 19, which projects up and rests in a slot q of the upper wheel, said slot being of such length as to allow the wheel 0 to be turned back in the closing of door B without imparting back motion to the wheel c', the object of which will be presently described. Another cord 0" is attached to the inner pulley G, and to this cord 4 is attached a heavy weight 3. To the lower end of the weight is attached a cord 15, passing around suitable pulleys u u and finally attached to a supplepulleys as to the shaft 3 of a damper K, which is located in a draft-passage a in the bridgewall L beneath the fire.

On the inner or back side of the outer pulley H is a rim b in which are made two notches or stops 0 (1 Figs. 2 and 3. To the outer face of the inner pulley G, next to this rim, is pivoted a dog f having a catch f which engages with the stop 0 At the top of the pulleys is also a detent 9 attached to some stationary part, which detent engages with the stop d*.

M is a dog pivoted at k to some stationary part, the inner end engaging with a stop 1' on the rim of the inner pulley Gr and the outer end resting under the weight d of the timemovement.

The operation is as follows: To replenish the fuel, the door B is opened. This gives motion to the spindle 'n, and the latter to the valve-stem through the medium of the two wheels 71 o. The turning of stem It opens the valve k and lets on steam, which then passes through the branch pipes E E and is injected into the fire above the grate. The turning of the valve-stem It also winds up the cord 1' on the wheel i and raises the weight 3. This action draws on the cordt and raises the supplementary door 1; and admits air to the firechamber. At the moment of commencing to open the door B the dog f attached to the inner pulley G, is in engagement with the notch c of the exterior pulley H, as shown in Fig. 3. The turning of pulley Gby the opening of the said door also turns pulley H by reason of said engagement of the dog with the stop. This draws on cord f and winds up the time-movement. The winding of the drum a draws up the weight (Z. \Vhen the dog f reaches the top of the pulleys, its inclined end f strikes a stop 7& trips the same, and throws the dog out of engagement with the outer pulley II, thereby releasing the tim emovement and allowing it to run. This position of the parts is shown in Fig. 2, where the time-movement has just commenced to run. The weight cl serves as the power to run the clock. At the same moment the end of the dog M has caught the stop 1' on the rim of the inner pulley G and holds the same, thereby retaining the weight 8 elevated and holding the supplementary door 1) open; but the main door B can be closed immediately, since the slot q in the wheel 1' allows the pin 29 in wheel 0 to turn backward freely. The opening of the door B, therefore, turns on the steam and elevates the supplementary door, and its closing can be made without turning off the steam or closing the supplemental-y door. \Vhen once in motion, the time-movement continues to run until its weight d strikes the outer end of the dog M, when it depresses the same, releases the op posite end of the dog from the stop 9?, thereby freeing the pulley G, allowing the weight 3 to drop, which turns off the steam, except a small jet, as before described, and also allows the supplementary door 1: to drop and shut off the passage of air. The interval of time during which the steam and air have passage depends upon the length of time the time-movement runs, and this can be arranged as desired. The stop (1 is to prevent the weight cl from running down when the timemovement is stopped. The same action which turns on the steam and admits the air also opens the damper K in the bridge-wall below the grate and allows escape of draft from under the fire. When steam is injected, it blows downward on the fire, depositing smoke and soot thereon, and the draft beneath the grate tends to draw it down and complete the combustion. \Vhen the steam is cut oif, the damper K is also closed. By the means above described the smoke and soot can be effectively consumed.

In Fig. 8 the supplementary door 1) is dispensed with, and the action of turning on and shutting off the steam is produced by the opening and closing of the furnacedoor alone. In such case but one wheel 2' is required, the same being attached to the spindle n, and the latter extends directly up into the steam-chamber D and carries the valve 7t" at its upper end. The invention and combination, including a door herein claimed, are not limited to any particular form or situation of the door.

I am aware that dash-pots have been employed in connection with furnace-doors to close the same by the gravitating efiect of liquid flowing through a passage into a receptacle suitably connected to the door; but I have found by continual trial that such devices are very defective, if not worthless, in practice. If mercury be used, a part of it or of its usual impurities becomes oxidized, and it is further affected by amalgamation with the metals or with some portions of the alloyed metals of the apparatus, so thatits fluidity is impaired, and so that it will not properly flow through the necessarily-small passage employed. \Vater also becomes impure and is very liable to evaporate and also to promote the rusting of the apparatus. The general use of fluid-regulators is precluded by these diflicultiesin the heated atmosphere of a furnace-room.

I am also aware that clock mechanism has been used in combination with the draftdampers of a furnace, and such devices are not of my invention.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a smoke-consumer, the combination, with a furnace-door, of time mechanism having an escapement, a steam-pipe opening into the furnace, a connection between the door and pipe, and a connection between the door and time mechanism, by which, respectively, the steam is turned on and the time mechanism wound in opening the door, said mechanism having suitable connections for turning oft the steam at the end of a given time, substantially as specified.

2. In a smoke-consumer, the combination, with time mechanism having an escapement, of a main furnace-door, a supplemental door or valve, and connections between the main door and the supplementary door or valve and between the main door and time mechanism, whereby, respectively, the supplementary door will be opened and the time mechanism wound by the opening (if the furnace-door, substantially as specified.

3. In a smoke-consumer, the combination, with time mechanism having an escapement, of a main furnace-door, a supplementary door or valve, connections between the main door and the supplementary door or valve and between the main door and the time mechanism,

whereby, respectively, the supplemental door will be opened and the time mechanism wound. by the opening of the furnace-door, and connections betweenthe time-movement and the supplementary door, whereby the latter will be closed at the end of a given time, substarr tially as specified.

4. In a smoke-consumer, the combination, with time mechanism having an escapement, of a main furnace-door, a supplementary door or valve, connections between the main door and the supplementary door or valve and be tween the main door and the time mechanism, whereby, respectively, the supplemental door will be opened and the time mechanism Wound by the opening of the furnace-door, a steampipe and valve, and connections whereby the valve will also be opened by the furnace-door, and connections whereby it will be closed at a predetermined time by the time mechanism, substantially as specified.

5. The combination, with a furnace-door, of an inductive steam-pipe, an eductive steampipe, a steam chamber divided by a diaphragm provided with ports into two compartments, with which said pipes connect, respectively, and a valve attached to the spindle within said chamber and adapted to cover and uncover the ports of the diaphragm, whereby the opening of the door turns on the steam and its closing turns the steam off, substantially as specified.

(3. The combination of a furnace-door, a spindle attached to the same and turning with it, a pulley on the spindle, a cord attached to the pulley, and a time mechanism normally held at rest, with which the cord is connected, whereby the opening of the door will wind said mechanism, and a dog adapted to be released by the opening of the door to permit the time mechanism to act, substantially as specified.

7. The combination of a furnace-door, a spindle attached to the same and turning with it, a winding-wheel on the spindle, a pair of pulleys mounted independently on the same support and connected by an engaging dog, a cord attached to the spindle passing over one of thepulleys and provided with a counter-weight, a cord winding on the other pulley and connecting with a drum of the timemovement, a dog for holding the first-named pulley, and a weight attached to the timemovement for operating the dog, as specified.

8. The combination of the two pulleys G H, the dog f, connecting the pulleys, the dog M, engaging with the pulley G, the time-movement F, provided with the weight 61, resting over the outer end of dog M, the stop 10 for disengaging the dog f and the winding-cord f, as shown and described, and for the purpose specified.

9. The combination of the door B, the spindle n, turning therewith, the steam-chamber D, the valve-stem 70, provided with the valve the diaphragm Z, and the wheels '6 0, attached, respectively, to the spindle and valvestem, one being provided with the slot q and the other with the pin 19, as and for the purpose specified.

10. The combination, with a furnace-door, of a steam-pipe for injecting steam into the furnace, a connection between the door and the steam-pipe, whereby the steam will be turned on by opening the door, a damper in a draft-opening in the bridge-wall below the fire, and a connection extending from the door to the damper, whereby the damper will be opened by the opening of the door, as specified.

11. In a smoke-consumer, the combination of a time mechanism having an escapement with a steam-pipe adapted to admit steam to the combustion-chamber of the furnace and having a cook or valve and with intermediate devices whereby the steam can be automatically cut off at a predetermined time, substan- JAMES SARGENT.

Witnesses:

BENJ. R. OATLIN, O. H. KEAN. 

